Soldering-tool.



No. 835,794. PATENTED NOV. 13, 1906. S. KUHN.

SOLDBRING Toor..

APPLICATION FILED SEPT. 21, 1905.

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AUNTTED STATES PATENT oEEIoE.

SIGMUND KOHN, OF NEW YORK, N. Y., ASSIGNOR OF ONE-HALF TO HARRY BROOKS, OF NEW YORK, N. Y.

SOLDERlNG-TOOL.

Specification of Letters Patent.

Patented Nov. 13, 190e. i

To LZZ whom t may concern:

Be it known that I, SIGMUND KOHN, a citizen of the United States, and a resident of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Soldering- Tools, of which the following is a specification.

The present invention pertains to soldering-tools which are heated by means of a gasfiame, and has for its object to insure a uniform strong heating of the copper bit and to allow of its being used for both soft and hard soldering.

In order to make my invention more clear, the same is illustrated in the accompanying drawings, in which;

Figure l is a longitudinal section of the tool, the copper bit or bolt being removed. Fig. 2 is a longitudinal section of the forward end of the tool carrying the copper bit or bolt. Fig. 3 is a cross-section through line of Fig. 2, showing the adjustment of the bit. Fig. 4 is a cross-section through line y y of Fig. l. Fig. 5 is a cross-section through line .e z of Fig. l. Fig. 6 is a cross-section through line w w of Fig. l. Fig. -7 is a crosssection through line o o of Fig. l.

Vith reference to the drawings, a denotes a hollow wooden handle containing the supply-pipe l), which is to be connected with the gas-pipe leading from a suitable source. The forward end of the pipe b is screw-threaded to receive a nut c. Upon the screw-threaded end of the nut c a pipe d is iixed, which carries at its forward end a mouthpiece c, adapted to hold the wedge-shaped copper bit or bolt f. In the forward open end of the nut c a small mouthpiece g, having a narrow passage i, is suitably xed. This mouthpiece projects into the pipe d and is provided with a narrow bore y', which intersects the bore i of the mouthpiece and in which works a pin-valve c, arranged in a casing l. The casing Z is fixed at the rear end of the pipe d above the mouthpiece g. The spindle k and the pinvalve 7C are smaller in diameter than that of the inner circumference of the casing l, so that an air-channel m is formed around the pin-valve. Apertures are arranged in the circumference of the casing to allow the admission of air into the pipe d. Openings d are also provided at the inner end of the pipe d, and a cap of wire-gauze n or the like is fitted around said openings d to form a Bunsen burner. A shell Z of any suitable shape is arranged over the wire-gauze cap n and a part of the pipe l) and is xed to the forward end of the wooden handle c. This shell Z has openings o, adapted to register with the openings in the pipe d, thus allowing air to pass through the gauze-cap n and the apertures d into the pipe d. At the rear end the shell l is also provided with a series of small apertures o', which apertures allow admission of air from the rear. At the front extremity of the pipe d a rotary valve p is arranged in a casing q, fixed in the pipe d and projecting outward therefrom. The valve p consists of a narrow tube having an opening p@ and the casing g has a corresponding opening q, with which the opening p is adapted to register when in order to open the valve the latter is turned around its vertical axis.

The mouthpiece e, which is removably attached to the forward end of the pipe d, is provided at its rear with perforations t t, through which the ignition of the gas mixture entering the mouthpiece through the pipe d is effected, the rear part of the mouthpiece thus forming the ignition-chamber. The front part of the mouthpiece is preferably of rectangular shape and provided with openings r r to engage the 'head of the copper bit f, the latter being adapted to engage with one of the openings 1^ of the mouthpiece when it is to be used as a hammer.

To secure the copper bit in position when in engagement with the mouthpiece, 4setscrews s s are arranged to work in the side walls of the mouthpiece. e

The pin-valve 7c controls the admission of gas from the pipe l) into the pipe d. When the valve p,which controls the blast, is closed and the valve Ic is raised or opened, the gas flows through the pipe b and mouthpiece g into the pipe d, and being ignited in the mouthpiece c burns as an ordinary blue flame. On opening the blast-valve p the air admitted through the latter will transform the ordinary fiame into a blast-flame, which will have a great heating capacity, so that the bit f will be rapidly and strongly heated. In moving the soldering-iron to and fro during its operation air will be supplied through the apertures o', o, and n.

ICO

A further important feature of my invention is that the construction of the tool permits the latter to be used as a blowpipe for hard soldering. To this end it is necessary to remove the mouthpiece e and the copper bit VYhat I claim, and desire to secure by Letters Patent, is-

In combination with a soldering-tool, of a mouthpiece detachably fixed to the soldering-tool, said mouthpiece having a square cross-section in Jfront and a gradually-reduced rear portion, the square front portion being provided with an opening at its forward extremity, and with openings in two opposite walls, set-screws arranged in the two yother side walls of the mouthpiece oppositely to each other, and a copper bit7 to be carried by said mouthpiece, and being capable of being engaged therewith either longitudinally through the front opening, or transversally through the opposite side openings and of being secured in either position by the said set-screws so as to serve both for soft and hard soldering7 substantially as set forth. Signed at New York7 in the county of New York and State of New York, this 20th day of September, A. D. 1905.

SIGMUND KOHN. Witnesses:

HARRY BRooKs, JOHN T. CARMODY. 

